CSharp-Coder

Learn ASP.NET Core global error handling with middleware, IExceptionHandler, Problem Details & logging. Copy runnable C# examples and ship safer APIs today. Unhandled exceptions are inevitable — a database goes down, a third-party API times out, a null sneaks past your validation. What is not inevitable is leaking stack traces to clients, returning inconsistent error payloads, or losing the log entry that would have told you what went wrong. Solid ASP.NET Core exception handling solves all three problems in one place: a single global pipeline that catches every unhandled exception, logs it with full context, and returns a clean, standards-compliant response. In this guide you'll build global error handling for ASP.NET Core step by step — from classic custom middleware, to the modern IExceptionHandler interface in .NET 8+, to RFC 9457 Problem Details and structured logging. Why Global Exception Handling in ASP.NET Core Matters Wrapping every controller action in try/catc...